Every year, fertility clinics report the success rates for their in vitro fertilization cycles to the Centers for Disease Control and Prevention (CDC). The CDC Assisted Reproductive Technology Report isn’t necessarily meant to be a resource for comparing clinics, but it does give people an idea of what goes on in each clinic’s IVF labs. The reports are not all that easy to interpret, so it is important that you understand what exactly you are reading if you are using them to make an opinion about clinics that you are interested in.